Perhaps you should try some spelling variations:
hanh via » hanh vi, hanh va, anh va
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
vu nang » vuc nang, va nang, vu dang
hieu ve » hieu va, hieu van
ve giao » te giao, viet giao, van giao
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau treo
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y nang) or (vu nang)) x hoi. hieu ve giao duc va hanh via ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (vu nang)) x hoi. hieu ve giao duc va hanh via ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (vu nang)) x hoi. hieu ve giao duc va hanh via ((cuu tre) OR (cau tren))*".